Bi-Center Bit 6-1/2 Inch x7-1/2 Inch Dual Drill Bit Of Oilfield Drilling Tool 1. Specification A variety of Bi-Center bits are available from us in .....
API Spec 6 -1/2 Inch X 7-1/2 Inch PDC Bi Center Drill Bit Of Hard Rock Drill Bit API Spec 6 -1/2 Inch x 7-1/2 Inch PDC Bi-Center Drill Bit Of Hard .....
PDC Button Bit 8-1/2Inch Bi Center Drill Bit With 13mm PDC Cutter 1. Specification A variety of Bi-Center bits are available from us in both Steel and ...